Electric commercial vehicle battery pack, charging pile matched with electric commercial vehicle battery pack and battery replacing trolley

Abstract

The invention discloses a battery pack of an electric commercial vehicle, which is cuboid-shaped, is manufactured into a plurality of sizes and specifications according to different load capacities ofthe electric commercial vehicle, and is matched with battery cabins with corresponding sizes and specifications on the electric commercial vehicle. The battery pack is characterized in that a plug isarranged on the front end wall surface of the battery pack, and a connecting groove or a connecting bulge convenient to drag is arranged at the bottom of the battery pack close to the tail end wall surface; meanwhile, multiple rows of rollers or sliding blocks are arranged on the surface of the battery pack, and a plurality of screw holes are further formed in the bottom surface of the battery pack and used for being matched with screws to be fixed into the battery bin; and a plurality of guide positioning holes or guide positioning columns are also arranged on the wall surface of the front end of the battery pack. The invention further discloses a charging pile and a battery replacing trolley which are used in cooperation with the battery pack, transverse plugging charging and battery replacing of the battery pack of the electric commercial vehicle can be achieved, efficiency is improved, standardization and unification of battery replacing of the battery packs of different specifications are facilitated, and the problem that the electric commercial vehicle cannot be popularized can be solved.

Description

technical field [0001] The invention relates to a battery pack for an electric commercial vehicle, a matching charging pile and a battery replacement trolley. Background technique [0002] Automobile oil-to-electricity conversion is a major strategic policy for the country to reduce a large amount of oil imports, and an important national policy for energy conservation, emission reduction, and green development. Compared with traditional cars, electric vehicles can achieve zero emissions during driving, and have low noise, and the driving cost is much lower than that of traditional cars. Through years of hard work, the oil-to-electricity transformation of buses in my country has been steadily advanced, and small electric household vehicles have also developed rapidly. [0003] Although the country has issued a number of supporting policies for electric vehicles, and electric vehicles have many advantages, electric vehicles still cannot be fully promoted. The fundamental rea...

AI Technical Summary

Problems solved by technology

The problem of charging mode: According to the current battery technology, it takes 2 hours to fully charge the battery under the premise of ensuring battery life. This is also the most fundamental problem that electric vehicles cannot replace fuel vehicles; There are many problems such as large differences, complex and expensive power replacement equipment, and inconsistent specifications, so they cannot be widely used

[0006] 1) Based on the existing battery technology, taking into account factors such as the weight, volume, and price of the battery, the fully charged mileage of the battery that is reasonably configured for the current electric commercial vehicle is about 300km-400km. If each charge takes two hours for transportation Vehicles are unacceptable to the freight industry

[0007] 2) It takes a long time to use a charging pile to directly charge the vehicle battery pack, and it takes a long time to occupy a parking space. As we all know, the space occupied by commercial vehicles is much larger than that of ordinary household small cars, and it is difficult to build a large number of charging stations like household small cars. popularization, making it difficult to realize the charging demand of electric commercial vehicles

[0010] In order to solve the problem of oil-to-electricity conversion of commercial vehicles, the only solution at present is to adopt the battery-swap mode. However, the battery pack storage design based on electric commercial vehicles and the application of power-swapping station technology are still in their infancy and immature in China.

At present, the battery replacement method for small household cars is that the battery pack is placed in the battery compartment at the bottom of the car, and is loaded and unloaded vertically. When changing the battery, the car body needs to be lifted, the car is transported to the bottom of the car body, and the screws of the battery pack are screwed. After the battery is removed, the battery will be shipped out, which will take a long time

However, electric commercial vehicles are not easy to lift due to their heavy body, so this method of battery replacement is generally not used.

[0011] The current battery replacement method for electric trucks is mainly to install the battery pack above the rear connecting frame of the vehicle, and insert the battery pack longitudinally into the battery compartment. more complicated

[0012] To sum up, the design of the battery compartment of the existing electric commercial vehicles and the corresponding battery replacement equipment are complicated in structure, and the loading and unloading efficiency is low.

In addition, most of the electric commercial vehicles currently using the battery exchange mode are trucks, and all of them are battery exchange equipment that only serve electric commercial vehicles of a single specification. In-region applications such as ports and mines

In general, commercial vehicles range from 1 to 49 tons, with various battery compartment designs and battery pack specifications. It is impossible to implement unified and efficient battery replacement, so it cannot be promoted and popularized.

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